It is the ratio of the relevant values ??of various parts of different properties in the whole to the overall value, reflecting the proportion of each part in the whole. For example, the ratio of foreign trade exports to total imports and exports reflects the proportion of exports in total imports and exports. In addition, by examining the changes in relative structural indicators in different periods, we can see the changing process of things and their development trends. Third, compare relative indicators. It refers to the comparison of a certain similar phenomenon in different spaces during the same period, indicating the relative degree of difference between a certain similar phenomenon in various countries, regions or parts. For example, the ratio of the GDP of country A to the GDP of country B reflects the gap in economic strength between the two countries. Fourth, dynamic relative indicators. It is the ratio of the reporting period value of a certain phenomenon to the base period value of the same phenomenon, which reflects the development speed or growth rate of things. For example, my country's GDP in 1994 was 4.4918 billion yuan, in 1993 it was 3.4477 billion yuan, and in 1994 it was 111.6% of 1993, or an increase of 11.6% (at comparable prices).